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Title: Jacquard loom showing the punched cards carrying the pattern instructions
Caption: Jacquard loom showing the punched cards carrying the pattern instructions. These were strips of pasteboard - or sometimes tin - 304-608mm long by 50-75mm wide, with perforations t.35 in diameter. A card was needed for each weft thread of a pattern and, although 400-800 cards were normally used, patterns needing 24,000 were sometimes worked. From Louis Figuier Les Grandes Inventions, Paris, 1863.
Credit: Album / World History Archive
Image size: 4380 × 4789 px | 60.0 MB
Print size: 37.1 × 40.5 cm | 1724.4 × 1885.4 in (300 dpi)